HP 8590 E-Series, Calibration Manual

Page: 368 / 693

53. Tracking Generator Level Flatness ,
HP 8593EM , HP 8594EM , HP 8595EM , HP 8596EM Option 010
53. Tracking Generator Level Flatness ,
HP 8593EM , HP 8594EM , HP 8595EM , HP 8596EM
Option 010
This performance verication test must be performed with the EMC analyzer set
in the spectrum analyzer mode.
The tracking generator output is connected to the EMC analyzer input and the
tracking is adjusted at 300 MHz for a maximum signal level. A calibrated power
sensor is then connected to the tracking generator output to measure the power
level at 300 MHz. The measuring receiver is set for RA TIO mode so that future
power level readings are in dB relative to the power level at 300 MHz.
The tracking generator is then stepped to several frequencies throughout its
range . The output power dierence relative to the power level at 300 MHz is
measured at each frequency and recorded.
F or frequencies below 100 kHz, a digital voltmeter and precision 50 ohm
termination are used to measure the power of the tracking generator output.
The DVM is set to readout in dBm using the MA TH function with R value set to
50 ohms . The dBm equation used is :
dB m = 10
LO G
E
2
R
1mW
!
The DVM readout is corrected by making the readings relative to the 100 kHz
reading from the power sensor .
The related adjustment for this procedure is \Tracking Generator P ower Level
for Option 010, HP 8593EM, HP 8594EM, HP 8595EM, and HP 8596EM."
Equipment Required
Measuring receiver
P ower sensor , 100 kHz to 2.9 GHz
Cable , Type N, 62 cm (24 in)
Digital voltmeter
50 Ohm termination
Cable , BNC 91 cm (36 in)
A dapter , BNC (f) to dual banana plug
A dapter , Type N tee , (m)(f)(f)
P erformance V erication T ests 2-339